.nav {
  width: 234px;
  height: 460px;
  /* margin: 50px; */
  background-color: #a19f9f;
  position: relative;
}

.nav ul {
  box-sizing: border-box;
  padding: 10px;
  display: flex;
  justify-content: space-between;
  flex-direction: column;
  height: 100%;
}

.nav ul li {
  margin-left: 30px;
  margin-top: 25px;
  font-size: 12px;
  color: #ffffff;
  /* font-size: 12px;
            cursor: pointer;
            transition: color .3s linear;
            display: flex;
            align-items: center; */
}

.nav ul li span {
  color: #333;
}

.nav ul li span:hover {
  color: red;
}

.nav .content {
  width: 1000px;
  min-height: 470px;
  background-color: #fff;
  position: absolute;
  left: 110%;
  top: 0;
  box-sizing: border-box;
  padding: 20px;
  display: none;
  justify-content: space-between;
  z-index: 7;
}

.nav .content .left {
  flex: 1;
  box-sizing: border-box;
  padding-right: 20px;
}

.nav .content .left .tags {
  height: 20px;
  display: flex;
}

.nav .content .left .tags li {
  padding: 5px 10px 5px 5px;
  background-color: #333;
  font-size: 14px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-right: 10px;
}

.nav .content .left .tags li span {
  color: #fff;
}

.nav .content .left .tags li i {
  font-style: normal;
  color: #fff;
  margin-left: 5px;
}

.nav .content .left .cate_list {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  margin-top: 15px;
}

.nav .content .left .cate_list li {
  display: flex;
  font-style: 14px;
}

.nav .content .left .cate_list li .name {
  width: 100px;
  text-align: right;
  box-sizing: border-box;
  padding-right: 10px;
}

.nav .content .left .cate_list li .name span {
  font-weight: 700;
  font-style: 14px;
}

.nav .content .left .cate_list li .name i {
  font-style: normal;
}

.nav .content .left .cate_list li ol {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
}

.nav .content .left .cate_list li ol li {
  color: #333;
  padding: 0 5px;
  margin-bottom: 3px;
}

.nav .content .left .right {
  width: 170px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.nav .content .left .right .small_list {
  margin-bottom: 10px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-content: space-between;
}

.nav .content .left .right .small_list li {
  width: 85px;
  height: 35px;
  margin-bottom: 2px;
}

.nav .content .left .right .big_list {
  flex: 1;
}

.nav .content .left .right .big_list li {
  width: 100%;
  height: 130px;
  margin-bottom: 2px;
}

.nav .list.content {
  display: block;
}

.nav > .content.active {
  display: flex;
}
